How did innovations in engineering most contribute to the lasting survival of the Roman Empire?

They helped the empire create alliances.
They helped the empire spread its culture.
They helped the empire expand its territory.
They helped the empire build a stronger military.

imagrants

explanation:

i used to know but i learned it a long time ago sorry

explanation:

native americans

american indians have appeared on many u.s. coins including the buffalo nickel

benjamin franklin learned a lot about democracy by observing the iroquois indian

the term "indian" originated with christopher columbus. he thought that he had reached the east indies when he landed in america and therefore named the inhabitants indians.

camping

camping can relieve stress and depression

your campfire may be a hazard

long-term campsites include permanent and semi-permanent setups and can lead to closer relationships with neighboring campers

buffalo

buffalo are herbivores and feed on about 60 pounds of plant material and grasses a day.

buffalo are considered to be an adult when they reach 3 years old.

buffalo’s tail can be almost three feet long, and they use it to swap at pesky bugs.

the gutenberg bible was and about 180 copies were sold/made